Now it?s time to do something about the defias problem! So after a little running around an completing The Defias Brotherhood IV, speak to Gryan Stoutmantle who will say:

We need to discover the location of the Defias hideout. My scout reports that a Defias Messenger has been seen on the roads between Moonbrook, the Gold Coast Quarry and the Jangolode Mine. I want you to capture him. If he resists, kill him and bring me whatever he is carrying.

Track down the Defias Messenger
Loot his message
Return to Stoutmantle

As Stoutmantle explains this messenger is wandering the roads of Westfall. The easiest way to find him, is to start at Moonbrook, then work your way north following the road. Once you spot the Defias Messenger (level 16), kill him and loot the message from his corpse. Then return to Stoutmantle who will say:

This is indeed firm proof that VanCleef is in charge. Now all we need to know is where the Defias gang is hiding out.

We?ve had a stroke of luck while you were gone. We captured a thief trying to steal Saldean?s wagon. He has promised to lead us to the hideout in exchange for his life. I want you to defend the traitor so he can reveal the hideout. Return to me once you have uncovered the location.

When you?re ready for some action, speak to the Defias Traitor standing near Stoutmantle, this will begin The Defias Brotherhood VI.